Innocard
Innocard PCIe Gen4 to OCulink 8i Dual Port Gender Changer
Converts a PCIe 4.0 x16 slot into two OCulink 8i ports with a built-in ReDriver, clock buffer and SMBus switch for longer cable runs
- Changer TypePCIe Gen4
- PCIe 4.0 at 16 GT/s via built-in ReDriver
- Dual OCulink 8i ports with x4 bifurcation support
- 100 MHz clock buffer drives longer cables
- SMBus switch and I/O expander for remote management
- Integrated 12 V to 3.3 V 5.5 A power controller
PCIe Gen4 to OCulink 8i Adapter
This Innocard adapter converts a PCIe x16 Gen4 slot into two OCulink 8i ports using SFF-8612 connectors. A built-in ReDriver extends 16GT/s signals across 16 differential lanes. The design supports bifurcation into four x4 links for flexible system topologies. Integrated clock buffers and SMBus management handle longer cable runs.
Suits builders adding U.2 or U.3 storage via OCulink
This card serves integrators who need to break out a single x16 slot into multiple high-speed drive connections. It is not for users who require a direct GPU riser or who lack a full x16 electrical slot. Buyers needing only a single OCulink port or a simpler passive cable should consider other options.
Check slot wiring and firmware support
Verify the host platform provides a true PCIe 4.0 x16 electrical interface and supports bifurcation in BIOS or UEFI. Confirm the OCulink 8i cables match the SFF-8612 pinout defined by SFF-9402 Rev 1.1. Ensure the 12V to 3.3V power controller can draw 5.5A from the slot without exceeding platform limits.
Highlights
- PCIe 4.0 at 16 GT/s via built-in ReDriver
- Dual OCulink 8i ports with x4 bifurcation support
- 100 MHz clock buffer drives longer cables
- SMBus switch and I/O expander for remote management
- Integrated 12 V to 3.3 V 5.5 A power controller
Specifications
| Changer Type | PCIe Gen4 |
|---|
Questions about this item
What motherboard slot is required for the PCIe x16 Gen4 interface on this adapter?
A PCIe x16 slot that operates at Gen 4 speed is needed so the 16 lanes can run at 16GT/s.
Can the dual OCulink 8i ports work with a CPU or chipset that only provides PCIe 3.0 lanes?
The built-in ReDriver extends PCIe 4.0 signals, but the host must supply 16 Gen 4 lanes; a PCIe 3.0 source will not meet the 16GT/s link requirement.
How can I verify the SMBus devices are responding after installation?
Scan the bus for addresses 0x20, 0x6C and 0x70; the I/O expander, clock buffer and SMBus switch should all acknowledge at those addresses.
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